1988–89 National Division 3
The 1988–89 National Division 3 was the second season of the third tier of the English rugby union league system, the Courage Clubs Championship, currently known as National League 1. New clubs to the division included Askeans and Rugby who were promoted from tier 4 and there was no relegation from tier 2 at the end of the previous season.
Plymouth Albion won all their eleven matches and won promotion to the 1989–90 National Division 2. Rugby Lions finished second, winning ten of their eleven matches, and were also promoted. Metropolitan Police and Maidstone finished in the bottom two places and both clubs were relegated to the 1989–90 Area League South with Metropolitan Police relegated on points difference and Maidstone losing all of their matches.
Structure
Each team played one match against each of the other teams, playing a total of eleven matches each, and for the first time matches were played on fixed Saturdays. The top two clubs were promoted to National Division 2 and the bottom two relegated to Area League North or Area League South depending on locality.Participating teams and locations
| Team | Stadium | Capacity | City/Area | Previous season |
| Askeans | Broad Walk | 1,500 | Kidbrooke, London | Promoted from Area South |
| Exeter | County Ground | 5,750 | Exeter, Devon | 9th |
| Fylde | Woodlands | 7,500 | Lytham St Annes, Lancashire | 6th |
| Maidstone | William Davey Memorial | 2,000 | Maidstone, Kent | 8th |
| Metropolitan Police | Imber Court | 3,500 | East Molesey, Surrey | 7th |
| Nuneaton | Harry Cleaver Ground | 5,000 | Nuneaton, Warwickshire | 10th |
| Plymouth Albion | Beacon Park | 1,950 | Plymouth, Devon | 3rd |
| Rugby | Webb Ellis Road | 3,200 | Rugby, Warwickshire | Promoted from Area North |
| Sheffield | Abbeydale Park | 3,300 | Dore, Sheffield, South Yorkshire | 4th |
| Vale of Lune | Powderhouse Lane | 9,860 | Lancaster, Lancashire | 5th |
| Wakefield | College Grove | 4,000 | Wakefield, West Yorkshire | 1st |
| West Hartlepool | Brierton Lane | 4,950 | Hartlepool, Cleveland | 2nd |